Die holder for wire-drawing blocks



March so 1926, 1,578,351

F. H. NULLMEYE'.R

DIE HOLDER FOR WIRE DRAWING BLOCKS- Filed Mal ch 24, 1925 '2 Sheets-Sheet 1 v March 30,'1926.- 1,578,351

7 F. H. NULLMEYER I DJIE HOLDER FYOR WIRE DRAWING BL'O-CKS Filed Mafch 24.1925 2 Sheets-Sheet 2' v',\l I Li a INVENTOR Patented Mar,

m HOLDER waiving-DRAWING BLOCKS. v

Application filed ua'reh 24,"1925. se' iaiuo. 17,861.

To allfwhomz't may concern: 7

a, citizen of the United States, residing at Struthers, county of Mahoning; and State of Qhio,'have invented anew and useful Improvement in Die Holders for Wire-Draw ding Blocks, of which the following is a full,

clear, and exact description.

- The present invention relates to the artof wire drawing, and more partlcularly to van improved die holder for use in connection with wire drawing blocks.

It has heretofore been-customary in this art to use a screw vise arranged to hold dies or plates or other reducing means in'posit1on1n their holders.

These screws either came directly down upon the die orvplate V holder, 7 either and from the topof the holder and clamped the die between the screws and the bottom of the holder, or the arrangement was suchthat the die was clamped between the screws and the forward part of the of which means caused considerable delay in getting the proper .po-. sition' of the hole in the die in relation with the contact point of the wire drawing blocln ,B' ithe presentinvention I have provided a die "holder 'wherein these holding screws which have to be loosened every time the die orrplate isinoved are eliminated. 'Wherever I refer to die,' this term will be understood to mean any reducing means used'in the art of wire drawing; 1 a

In the drawings:

Figure 1 is'a planyiew' a inulti-diei holder embodying a preferred form of my.

invention in position between two wire drawing blocks. I a a Figure 2 is a longitudinal section through the die holder taken onthe line I III of Figure 1, the wire, however,- being shown in an opening in the die;

F gure 3 is "a transverse section through the die holder on the line III-III of Figure 2; V v

Figure 4 is aplan'view of a single di'e holder adapted, to hold a die in horizontal position; g Figure 5 is a central,vertical'longitudinal Figure 6 a perspective view offal die ada ted to. cooperate with the holdershown in, iures Land d r Re erring to Figure 1,

"and clamped in adjusted position.

sectional view'of the die showniin Figured;

5A and. E represent is'arranged .Iny improved die holder Qpivoted centrally on '1 a pin i D, and having a plurality'of dies mounted therein.

7 ',Referring to Figures 2 and3,2" designates a die having airow ofopen1ngsa,b,c, (Z and e therein-adapted to be brought selectively into rmmx H. UL ME ER, 0E srnvrnsajs; 01110.

7 V V a pair of wire drawing blocks betweenlwhioh i Be it known thatI, FRANK.H, NULLMEYER,

case the die wouldbe moved horizontallyfin ,order to bring the several rows of openings into cooperative relation to the opening 3.

vBack of the die is arr-adjustablewedge 4, 7'

havingits frontv face inclined rearwardly from its lower edge towardsits upper'edge.

The lowerportion of the'wedge is bifurcated,

thereby providing an openingthroughiwhich the rod-or wire to be drawn can'pass tothe die. Tongues 6 projectfrom the opposite sldes of the wedge into horizontal grooves 7 has verticalbores 8-infthe bifurcated 'por} i in the sides ofthe die holder. The wedge i tionsthereof, and arranged in these bores are pins 9 which project belowjtheflowerends of the bifurcated portions and which areheld from falling out of t he bores'by p ns lO which extend transversely of the bifurcated portions and coopei'atawith reduced portions llofthe pins 9, whereby the latter are adapted to have a limited vertical movement inthefbores Set screws l2 c'ar rled by the upperlportion of the wedg'ei'en gage the upperends of the pins 9. Tighten-1 l ing these set screws 12 is effectiveto force I the wedge upwardly and to pressthe pins 9 downwardly against the bottom of the die holder, whereby the upper edges of the tongues '6 are" causedto. bind against the upper edgesof the grooves 7 With' this arrangementthe wedge 4 can beadjust'ed towards or from the front of vthe dier'holder Arranged between therdie 2 and the wedge; 4 is awedge 13ihavinga handle 14:,ir'i the forrngo f a bail, extending frorn'its'upp'er endl The re'arface l5 of'thewedge 13 in clines forwardly from the"top-edge'of the t wedge toward the bottom edgelther'eojf,

the angle of inclination ofsaid'falc .COIIQ} sponding to the angle of inclination of the front face 5 of the wedge 4.'The*lower portion of the wedge is also'b'ifurcatedto 15 canpass to the die.

provide an opening through which the wire By lifting the wedge 13 the distancebetween the forward inside face of the die holder and the front face of the wedge is increased, so that the die can be removed and replaced by a thinner, or

' Figurefl. Cnsequently, it willbe only ne-v dies, it will be apparent that the invention is equally adaptedtoa dieholder having a :singledie. Av inultipledie holder where a the; different diesbeing used.

thicker die, or the die 'can be adjustedto bring the. desired'holeinto operative Wire. drawing position. hen thewedge 13 is al lowed to dropthe' die is held in, the position; desired. i

Adjustment of the wedge4towards or from the front of the dieholder is necessary only in order to cause the wedge 13 to assume a; normal position aboutfas shown .in

cessary to move the wedge 4 towards or from the front of the die holder in'cases where there is much variation in the thickness of l Vhilie Ihave shown in Figures 1,2 and8 a die'. holder adapted to'hold a plurality of plurality offdies can be held separately is;

particularly desirable in wire 'jdrawing' apparatus of the character disclosed, for ex ample, in my co-pending application, Serial No. 657,705, filed August .16, 1923.] In an I apparatus of this characterwhile drawing through one die to a certain size, it is desirable to get a die into position for succeedi'ng sizes of Wire, or to replaoe a Worn-out die Witha neW'o'ne while the wire is being drawn through another diein the holder;

In this Way considerable saving in time can i be effected and an increase in production 'ac- Peompli shedby this saving in time ordinarily consumed vvithholders usedheretofore. N

Referring to Figures 4, 5 and 6,117 designates a holder for asingle die. This hold:

'er is'T-shaped, thereby providing. an elon gated cliainberl8at its front end adapting a die 19, suchas shown in Figure 6," to be introduced froni either side of'this chamber and held by the cooperatingiveclges .4 and 13 ina horizontal position. The die may have a'plurality of horizontal rows of openings 20 which may be selectively brought to I register with the'opening 3 by adjusting the die upor down or horizontally.

I 1Ani1np ortant advantage ofniyconstruction'o'f die holder over thosein coninioi'i use a at present, is in the location. of the; opening 'ou'o'pemng's into which the die or dies are introduced. .Suchopenings or openingsbeat the top of theholder, the lubricants contained in the holder can not Work out and be; Wasted as: is com inonjwithholders ordina rilyused, which have openings at the side. These" side openings inust be large enough to receive the-largest die which it is expectedgtojuse; and rwhen a; smaller dieis nsedfora finer-"gauge of wire to be drawn,

' the scope" of :adjuStableLwedge engageable wi which is the usualpractice,.the opening be tween the back of thedie' and the holder is increased by the difference between the. thickness of a thick die and that of a thin. oii'eywhichf allows the lubricants to Work limited to its illustrated embodiments,j.butf that it iinay beotherwise embodied within" I' claini T the appended Qcali'nis. I

1. Wire drawing means, comprising a die holder open atits top, a die of substantially. uniform: thickness adapted tobe inserted and removed through the opening in'the top-of the holder, and means for olainping'said die against a face'of the holdernsaid n' eaiis, conii prising a vertically adjustable wedge having a face parallel with the face of ,the holder Q whichis 1o engage the die,-saidj face of the holder'engaging one faceofthe die and the parallel face of the wedgeengaging the op 'posite face of the die, substantially as described. 1

2. ire drawing means,.coinprisinga (lie holder open at its top, a die adapted to be sorted. and removed through an opening in thetop ofthe holder, andmeans for clamp:

ingsaid die against the face of said holder,

said means comprising a wedge spacedfroni said face, and a vertically ad ustablQ Wedge arranged I between said die and said' first tially as described.

wedge and engageable tlierewitl1, substan I 3. Wire .drawingineans', coinp-risingaLdie holder open at its top, a die adapted to be inserted and removed through an opening in the top of the holder, and means for clamping said die againstthe faceof said holder, said means com-prising a wedge ad justable towards and from said. face, means for holding said wedge in adjustedposition,

and avertioally adjustablewedge. arranged between said die'and said first ivedgeand.

engageable therewith, substantially as i de-- scribed. j H I 4. ire drawing means, comprising die lie holder. open atit-s top, a die adapted to be in:

serted andreinoved through an openingin the top of the holder, and hav ng a plurality of: reducing openings therein, and .nieans for clainp'ing" said die against the face ofsa-id holder w th the desired opening n operative position, said neans compr singa vertically substantially as described. V

. SQXVire drawing means, .cioinprising a die holder ope'nat its.top, an d having a vertical wall w th an opening therethrough.fo he passage of the wire being d'rawnga die adapt-,'

it Sara are,

ed to be inserted and removedtl'irough-the opening in the top of the holder and having a plurality of reducing openings therein adapted to be registered selectively with the opening in said wall by adjusting the die in said holder, and means for clamping said die in adjusted position against the inner face of said wall, said means comprising a wedge adjust-able towards and from said wall, means for holding said wedge in adjusted position, and a verticallyadjustable wedge thereof, said means comprising a'vertically' adprstable wedge engageable with said die,

substantially as described. r

7. ire drawing means, comprising a the holder pivoted to swing on a vertical axis and having a. plurality of compartments each adapted to receive a die through an opening in the top thereof, and means in each coinpartinent for clamping a die against a wall thereof, said means comprising a wedge spaced from said wall, and a vertically adjustable wedge arranged between said die and said first wedge, 'substantiallyv as dc-v scribed.

8. ire drawing means, comprising a. die

holder having an opening in one wall there.- of, a die having a reducing opening therein,.

and means for clamping said dieagainst said wall with itsreducing opening reg'istei 7 ing with the opening in said wall, said means comprising. a removable wedge engageable with said die, substantially as described.

9. ire drawin means com risin a die I holder having an opening in one wall thereof, a' die having a reducing opening therein,

and means for clamping said die against said wall with its reduclng opening registering with the opening'in said wall,'said means c-on'iprising a wedge spaced from said. wall' and an achustable wedge arrangedbetween said die and said first wedge and engage-able therewith, substantially as described. 10. ire drawing means, comprising a die holding box open at the top and adapted to contain a lubricant'for the wire drawing operation, a die adapted to be inserted into the box through the openin g in the top thereof, and a wedge within the b'ox'fo'r clamping the die in position, substantially as described.

In testimony whereof I have hereunto set my hand.

FRANK H. NULLMEYER. 

